$OpenBSD: patch-nbconvert_exporters_html_py,v 1.1 2017/05/25 11:45:25 shadchin Exp $

Index: nbconvert/exporters/html.py
--- nbconvert/exporters/html.py.orig
+++ nbconvert/exporters/html.py
@@ -1,3 +1,4 @@
+# coding: utf-8
 """HTML Exporter class"""
 
 # Copyright (c) Jupyter Development Team.
